Inventor
Klaus Erhardt
Inventor
Leimen, DE
Overview
Patents· 10 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C05Gprimary
C05GMixtures of fertilisers covered individually by different subclasses of class c0519%
C07DHeterocyclic compounds19%
C05FOrganic fertilisers not covered by subclasses c05b, c05c, e.g. fertilisers from waste or refuse11%
Y02ATechnologies for adaptation to climate change11%
Y02PClimate change mitigation technologies in the production or processing of goods11%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%
C05CNitrogenous fertilisers7%
C07CAcyclic or carbocyclic compounds7%
C05DInorganic fertilisers not covered by subclasses c05b, c05c4%
PatentTitleYear
6,802,882'Nitrification inhibitors, and the use of polyacids which contain a nitrification inhibitor for the treatment of inorganic fertilizers'20046,500,222'Diureides and their use'20026,489,438'Fertilizer formulations comprising polysulfonic acids'20026,488,734'Nitrification inhibitors, and the use of polyacids which contain a nitrification inhibitor for the treatment of inorganic fertilizers'20026,413,292'Use of an aqueous dispersion from a biodegradable polyester as a sheathing material for granulated fertilizer'20026,353,134'Diureides and their use'20026,287,359'Granule mixtures composed of coated and non-coated fertilizer granules'20016,139,596'Nitrification inhibitors and the use of polyacids to treat mineral fertilizers containing a nitrification inhibitor'20006,022,979'Process for preparing pyrazoles'20003,996,220'Production of 4-oxotetrahydro-1,3,5-oxadiazines'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–2004Patents assigned to BASF AG (8)· patent assignee history
1976Based in Ludwigshafen, DE· patent location history
2000–2004Based in Leimen, DE· patent location history
2001Patents assigned to K & S AG (1)· patent assignee history
2002Patents assigned to COMPO GMBH & CO KG (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BASF AG | 8 | 1976–2004 |
| COMPO GMBH & CO KG | 1 | 2002 |
| K & S AG | 1 | 2001 |
Locations
| Location | Patents | Span |
|---|---|---|
| Leimen, DE | 9 | 2000–2004 |
| Ludwigshafen, DE | 1 | 1976 |